TAQTON Neodymium Bar Magnets, N52, 2&frac12; x &frac12; x &frac14;, Pack of 2. Strong Permanent Rare Earth Magnets. Fridge, DIY, Building, Scientific, Craft, and Office Magnets <span class="a-text-bold">Grade: </span>Neodymium N52 (<span class="a-text-bold">Strongest Grade Available</span>)